FIELD: chemistry.
SUBSTANCE: invention can be used in chemical industry. The method of producing zinc oxide involves grinding zinc-containing material in form of powdered zinc metal and treatment with a gas-air mixture carried out while grinding at temperature of 60-100°C for 30-90 minutes. The gas-air mixture contains water vapour, air and ammonia in molar ratio H2O:air:NH3 = (0.25-0.5):1:(0.05-0.12). Calcination is also carried out at 150-200°C for 1.5-2.5 hours.
EFFECT: invention increases specific surface area of the obtained chemically pure zinc oxide.
1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING ZINC OXIDE | 2011 |
|
RU2456240C1 |
| METHOD OF PREPARING CATALYST FOR LOW-TEMPERATURE CARBON MONOXIDE-WATER STEAM CONVERSION PROCESS | 2006 |
|
RU2306176C1 |
| METHOD FOR PREPARATION OF CATALYST FOR LOW TEMPERATURE CONVERSION OF CARBON OXIDE WITH WATER VAPOUR | 2007 |
|
RU2358804C1 |
| METHOD OF PRODUCING COPPER OXIDE | 2011 |
|
RU2463251C1 |
| METHOD OF PREPARING ZINC OXIDE | 2019 |
|
RU2696125C1 |
| METHOD OF PREPARING CATALYST FOR LOW-TEMPERATURE CONVERSION OF CARBON MONOXIDE WITH STEAM | 2011 |
|
RU2457028C1 |
| METHOD OF PREPARING CATALYST FOR MIDDLE-TEMPERATURE STEAM-MEDIATED CONVERSION OF CARBON MONOXIDE | 2005 |
|
RU2291744C1 |
| METHOD OF PRODUCING CATALYST OF MEDIUM-TEMPERATURE CONVERSION OF CARBON OXIDE BY WATER STEAM | 2011 |
|
RU2445160C1 |
| METHOD FOR OBTAINING A SORBENT FOR PURIFYING GASES FROM SULFUR COMPOUNDS | 2021 |
|
RU2772597C1 |
| METHOD OF PRODUCING COBALT FERRITE | 2023 |
|
RU2841269C2 |
